Process for the production of a plastic or elastic substance.



I solved in 125.

PATENT OFFICE.

.runius s'rocxnnus nn, or'otenrnnn, GERMANY.-

PROCESS FOBHTHE PRODUCTION OF A PLASTIC 0R ELASTIC SUBSTANCE.

No Drawing.

- Specification of Letters Patent.

Patented May 13,1913.

Application filed May 4, 1911'. Serial No. 625,083.

To all whom it may concern: 7

Be it known that I, JULIUS S'r'ooxHAUsEN,

a subject of the-German Emperor, residing at Crefeld, Germany, have invented a new and useful Process for the Production of a Plastic or Elastic Substance; and I do hereby declare the following to be a full, clear,

and exact description of the same. This invention has for object to produce an elastic or plastic substance from gelatin, which looks exactly similar to india rubber, and may be molded, rolled, pressed, shaped and otherwise worked.- This technical improvement is obtained essentially by 15 treating solid or liquid gelatin with camphor in the solid or liquid (dissolved) state,

at ordinary or'preferably at comparatively high temperature. The gelatin should contain only so little water and should be mixed with so much camphor that a rubber-like substance is obtained;

The invention resides primarily in the fact that the camphor is used as such, 5. free of combination with nitro-cellulose and similar substances. The camphor used is the ordinary commercial camphor. The claims .are to be considered in the light of the foregoing. The product so obtained may addition of glycerin orsimilar solvents, of filling materials of any kind, of wood-pitch, wood tar, oils, fats, resins, turpentine, also of india rubber in solution orin the solid, as well as by hardening with the usual hardening agents and-by vulcanizing. The addition may be made before, at the time as and together with or after the addition of camphon. The hardening may be carried out before or after the addition of camphor.

. "Examples: I I. 125 grams of powderd gelatin are disgrams .of crudeglycerin, 28 B, at about 70 C.- Thenthere are added 15 grams of tar and 20 grains of camphor which is dissolvedin ;grarns of acetone. Finally. 15 grams. oixif7 xfornialdehyde are used for hardening. After verycareful and thorough thesubstancei c n b poured into mol Y I -11. 125 grams of powdered gene; r dissolved in .125 gramsfOf glycerin, asbefore. Then 15 grams ofwood-tar and20- grams of oamphor which is dissolved in 10 grams of acetone, and, lastly 30 grams of flowers of sulfur-are added. 15rgra1fisof be considerably improved by. the further 'To obtain better mixing, the substance may be passed through mixing rollers or a suitable mill. After the substance has. been sufiiciently stirred or rolled, it may be vulcanized in molds at about 110 C. and under suitable pressure.

III. 100 grams of powdered gelatin are dissolved in 125 grams of glycerin, as be- 4% formaldehyde are used for hardening' fore, and'30grams ofcamphor dissolved in 15 grains of acetone are added. After treatment ina mill, the material -is thoroughly mixed with .35 grams india rubber. 10 grams of tannin are used for hardening. The. material may be pressed in molds.

IV. 100 grams of gelatin-powder are dissolved in 130 grams of crude glycerin of 28 B, as above. 30 grams of camphor dissolved in 15 grams of acetone and 30 grams of flowers of sulfur are added. After treat ment in a mixing mill, this is mixed with 35 grams of india rubber, 20 grams of 4% formaldehyde. The material is vulcanized at about 110 C, as in the case of ordinary rubber mixings.

Having thus fully described my invention, what I claim is-- 1. The process of producingan india-' rubber substitute comprising mixing gelatin with glycerin and with camphor, said camphor. being dissolved in acetone.

2. The process of producing an indiarubber substitute comprising mixing gelatin with glycerin, wood-pitch and camphor, said camphor being dissolved in acetone.

3. The process of producing an indiarubber substitute comprising mixing gelatin with glycerin and with camphor, and treating the mass with sulfur.

4. The process of producing an lndiarubber substitute comprising mixing gelatin with glycerin and with camphor, sa d camphor being dissolved in acetone, and'trea-ting the mass. with-sulfur.

1 5. The process of producing an indlarubber. substitute comprising mixing gelatin with lycerin, wood-pitch and camphor,

and treating thema'ss with sulfur. a i 6. The process of producing an mdiarubbe'r substitute comprisingmixing gelatin with glycerin, .wood-pitch and camphor,'sa-i d c mph r treating. the mass with sulfur.

glycerin,:camphorfand acetone.

being dissolved" in acetone, and l india-rubber substitute comprising gelatln,

8. As a. new.'composition of matter, an

indie-rubber substitute comprising gelatin,

glycerin, camphor, acetone and wood-pitch. As a new composition of matter, an indie-rubber substitute comprising gelatin, glycerin, camphor and sulfur. As a new composition of matter, an

indie-rubber substltute comprising gelatin,

glycerin, camphor, acetone and sulfur.

1 As a new composition of matter, an indie-rubber substitute comprising gelatin, glycerin, camphor, wood-pitch and sulfur.

. sulf 12. As a new compositiorb of matter, an india-rubber substitute comprising gelatin, glycerin, camphor, acetone, Wood-pitch and 15 In testimony whereof, I have name to this specification in the two subscribing witnesses.

JULIUS STOCKHAUSEN.

Witnesses:

HENRY QUADFLIEG, W. J. REUTERS.

signed my presence of 

